Means for ventilating buildings



(No Model.) 4 Shets-$heet 1.

0. H. GRIESE.

MEANS FOR VENTILATING BUILDINGS.

Patented May 4, 1886. F71.

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(N0 Medal.) 4 Sheets-Shet 2. G. H. GRIESE.

MEANS FOR VENTILATING BUILDINGS.

No. 341,328. Patented May 4, 1886.

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(No Model.) 4 Sheets-Sheet 4,

O. H. GRIESE.

MEANS FOR VENTILATING BUILDINGS. No. 341,328. Patented May 4, 1886.

WITNESSES Cm/ 9mm l/WE/VTO/i N. PETERS Plmfaiilhogmplmr. Wamiugluu. D. c.

UNITED STATES.

PATENT OFFICE.

CARL H. GRIESE, OF CLEVELAND, OHIO.

MEANS FOR VENTILATING BUILDINGS.

SWEZCIPICATION forming part of Letters Patent No. 341,328, dated May 4, 188E.

Application filed June 1, 1885. Serial No. 157,213. (No model.)

To all whom it may concern.-

Beitknown that I, CARL H.GRIEsE,of Cleveland, in the county of Guyahoga and State of Ohio, have invented certain new and useful Improvements in Heating and Ventilating; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

My invention relates to an improved system of heating and ventilating, adapted more especially to school-buildings and other buildings of similar construction; and it consists, essentially, in the arrangement of radiators, registers, induction and eduction air-ducts, air-chambers, and ventilating-chimneys, here- "inafter more fully described, and pointedout in the claims.

In the accompanying drawings is illustrated my improved system, a portion only of the building being shown.

Figure 1 is an elevation in section showing the location of the hall-registers. Fig. 2 is an elevation in section showing the location of radiators, cold-air ducts, and ventilatingducts, the latter located between the floorjoists. Fig. 3 is a plan view. Fim iis an elevation showing externally the air-duct under the window for supplying air to a radiator. Fig. 5. is a transverse section on the line 00 :0, Fig. 4.

A represents radiators that are of the vertical tubular variety, with openings through the base for the passage of air up among the tubes. The radiators set upon the floor, and are respectively inclosed by a casing, B, metallined, with a register, I), on top, preferably of the rolling-slot variety. This easing incloses a reservoir or hot-air chamber, 13, and prevents a direct lateral radiation from the radiator, by reason of which the temperature is not materially different in the Vicinity of the radiators from that of other portions of the room. Air is supplied from the outside of the building through the ducts a, located directly under the window, and leading down under and up through the floor, and discharging under the radiator, as shown in Fig. 5. These ducts should be provided with dampers (not shown) for controlling the draft. From the fact that these air-ducts receive their supply some distance from the ground they are free from many of the objectionable features of underground ducts receiving air near the grade-line that are therefore liable to draw in dust, or malarious or other noxious exhalations of the ground. The outer opening of the duct is covered with the screen or lattice work a, usually of some ornamental pattern.

The air passes through these ducts and up through the radiators, and is discharged in a heated condition first into the chamber B, and from thence through the register I) in an upward direction into the room. This heated air of course rises to the ceiling, where, in the absence of other agencies, it would stagnate, to avoid which lateral currents of cold air are admitted from the ducts 0 through the registers 0, located near the ceiling. These lateral currents commingle with the heated air, set the mass in motion, causing it to circulate freely, and by reducing the temperature causes it to be precipitated to the floor, to make room for the fresh supply constantly entering from the registers b and c.

D are registers set in the floor at various parts of the room, and lead, respectively, to the ducts d. that conduct the 'foul air to the chambers E, from which it passes through the fines c to the ventilating-chimneys F. The ducts d are arranged between the floor-joists and lined with tin. The chambers E are arranged over the closets E, the ceilings of which are depressed for this purpose some distance below the line of the ceiling in the larger rooms. The chimneys F are of ample size in cross-section, and are located in the central portions of the building. The draft in these chimneys is relied upon to carry off the foul air that is discharged from the ducts d and for the hall-registers H, that also discharge into the chambers E when practicable, or otherwise into suitable ducts leading to the chimneys F. As the force of the draft depends on keeping the air in the chimneys uniformly at a considerably higher temperature than that of the external air, the location of these stacks V in the central portion of the building, where they are not exposed to the wind and the extremes of cold, is a matter of greatimportance. One of these ventilating-chimneys can usually IOO be heated by the smoke-pipe from the boiler, and the waste heat of the boiler-room may be utilized for this purpose. The other chimney may be warmed by stoves, coils of steam-pipe, or both. WVith this system of heating and ventilating a constant and abundant supply of fresh air is always had, and the foul air is not Y allowed to accumulate, but is continually being drawn from the rooms, and the rooms are heated evenly throughout.

I am aware that it is old in systems of ventilating to take air in near the ceiling and dis charge it near the floor by'means of an exit stack or flue. I am also aware that it is old to heat and ventilate rooms by drawing fresh air in through a chamber containing a radiator. I therefore do not claim either of these fea tures separately.

\Vhat I claim is I 1. The combination, with a room and a radiator, of an inlet-duct at the lower portion of the room communicating with the radiatorchamber, an inlet at the upper portion of the room to admit cool air to mingle with the fresh warm air rising from the radiator-chamber, a number of outlets distributed over the floor, and a ventilating flue or chimney with which the outlet-openings in the floor connect, substantially as and for the purposes set forth.

2. The combination of a room having a radiator provided with a jacket through which fresh-heated air is drawn upwardly, an inlet at the upper part of the room through which fresh air is drawn downwardly to mingle with the fresh warm air,air-outlet ducts distributed in the floor, and a suction device with which the ducts connect for compelling the mingled air to pass out of the roomin regularcurrents, substantially as set forth.

In testimony whereof I sign this specification, in the presence of two witnesses, this 15th day of May, 1885.

CARL H. GRIESE.

Witnesses:

N. S. AMSTUTZ, G. IV. SI-IUMWAY. 

